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https://issues.apache.org/jira/browse/HBASE-6499?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13427241#comment-13427241
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Hadoop QA commented on HBASE-6499:
----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12538885/StoreScanner_not_reset_matcher.patch
against trunk revision .
+1 @author. The patch does not contain any @author tags.
-1 tests included. The patch doesn't appear to include any new or modified
tests.
Please justify why no new tests are needed for this
patch.
Also please list what manual steps were performed to
verify this patch.
+1 hadoop2.0. The patch compiles against the hadoop 2.0 profile.
+1 javadoc. The javadoc tool did not generate any warning messages.
-1 javac. The applied patch generated 5 javac compiler warnings (more than
the trunk's current 4 warnings).
-1 findbugs. The patch appears to introduce 6 new Findbugs (version 1.3.9)
warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
-1 core tests. The patch failed these unit tests:
org.apache.hadoop.hbase.coprocessor.TestRowProcessorEndpoint
Test results:
https://builds.apache.org/job/PreCommit-HBASE-Build/2480//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/2480//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/2480//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop1-compat.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/2480//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/2480//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/2480//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/2480//console
This message is automatically generated.
> StoreScanner's QueryMatcher not reset on store update
> -----------------------------------------------------
>
> Key: HBASE-6499
> URL: https://issues.apache.org/jira/browse/HBASE-6499
> Project: HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 0.96.0
> Reporter: Max Lapan
> Assignee: Max Lapan
> Attachments: StoreScanner_not_reset_matcher.patch
>
>
> When underlying store changed (due compact, bulk load, etc), we destroy
> current KeyValueHeap and recreate it using checkReseek call. Besides heap
> recreation, it resets underlying QueryMatcher instance.
> The problem is that checkReseek not called by seek() and reseek(), only by
> next(). If someone calls seek() just after store changed, it gets wrong
> scanner results. Call to reseek may end up with NPE.
> AFAIK, current codebase don't call seek and reseek, but it is quite possible
> in future. Personally, I spent lots of time to find source of wrong scanner
> results in HBASE-5416.
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